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-rw-r--r--src/modules/fw_att_control/fw_att_control_main.cpp11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/modules/fw_att_control/fw_att_control_main.cpp b/src/modules/fw_att_control/fw_att_control_main.cpp
index 522e8c3e6..2f84dc963 100644
--- a/src/modules/fw_att_control/fw_att_control_main.cpp
+++ b/src/modules/fw_att_control/fw_att_control_main.cpp
@@ -669,8 +669,15 @@ FixedwingAttitudeControl::task_main()
airspeed = _airspeed.true_airspeed_m_s;
}
- float airspeed_scaling = _parameters.airspeed_trim / airspeed;
- //warnx("aspd scale: %6.2f act scale: %6.2f", airspeed_scaling, actuator_scaling);
+ /*
+ * For scaling our actuators using anything less than the min (close to stall)
+ * speed doesn't make any sense - its the strongest reasonable deflection we
+ * want to do in flight and its the baseline a human pilot would choose.
+ *
+ * Forcing the scaling to this value allows reasonable handheld tests.
+ */
+
+ float airspeed_scaling = _parameters.airspeed_trim / ((airspeed < _parameters.airspeed_min) ? _parameters.airspeed_min : airspeed);
float roll_sp = _parameters.rollsp_offset_rad;
float pitch_sp = _parameters.pitchsp_offset_rad;